Cube



FIG. 1 is a bottom view of a cube showing my new design

FIG. 2 is a left side view thereof

FIG. 3 is a front view thereof

FIG. 4 is a perspective view thereof

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a back view thereof. 

The ornamental design for a cube, as shown and described. 